Volume 6: Energy Systems: Analysis, Thermodynamics and Sustainability 2007
DOI: 10.1115/imece2007-42970
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Model Based Characterization of Transient Response of a Solid Oxide Fuel Cell System

Abstract: In this paper we perform transient analysis of a Solid Oxide Fuel Cell (SOFC) system. We consider a steam reformer based SOFC system with anode recirculation and with methane as fuel. For the analysis, we develop a control-oriented model that captures the details of heat and mass transfer, chemical kinetics and electrochemistry of the SOFC system. The coupled dynamics of the steam reformer and the fuel cell anode control volumes are extracted and through coordinate transformations we derive closed-form express… Show more

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Cited by 3 publications
(5 citation statements)
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References 18 publications
(35 reference statements)
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“…where, X 1,a , X 2,a , X 4,a , and X 1,r , X 2,r , X 4,r , represent the molar concentrations of CH 4 , CO and H 2 in the anode and the reformer respectively, [12], [3]. U is sensitive to fuel cell current i f c .…”
Section: Fuel Cell Systemmentioning
confidence: 99%
“…where, X 1,a , X 2,a , X 4,a , and X 1,r , X 2,r , X 4,r , represent the molar concentrations of CH 4 , CO and H 2 in the anode and the reformer respectively, [12], [3]. U is sensitive to fuel cell current i f c .…”
Section: Fuel Cell Systemmentioning
confidence: 99%
“…However, the present system level models of SOFCs, for example [16][17][18][19][20][21][22][23][24][25][26] that are applied in performance [16][17][18]20,21,[23][24][25] and service life [19,22] predictions, and optimisations do not feature both of these requirements, i.e., the derivation of activation losses and utilisation ratios for multiple fuel species in a closed-form, and physicochemical consistency. Models, such as [16][17][18][19][20][21][22][23]26], model from the electrochemical point of view of only a single reactant component fuel (hydrogen) and neglect the CO, and calculate its effects only via energy balances or via the water-gas shift reaction (WGSR) without addressing the kinetics of electrochemical co-oxidation.…”
Section: Introductionmentioning
confidence: 99%
“…Models, such as [16][17][18][19][20][21][22][23]26], model from the electrochemical point of view of only a single reactant component fuel (hydrogen) and neglect the CO, and calculate its effects only via energy balances or via the water-gas shift reaction (WGSR) without addressing the kinetics of electrochemical co-oxidation. On the other end, these models aiming to address multi-component kinetics observed in SOFC are also being developed [24,25,[27][28][29][30][31][32][33][34][35][36][37]; however, they are usually embedded in higher fidelity models [27][28][29][30][31][32][33][34][35][36][37], ranging from 1D+1D [25] over 2D [28,29,31,32,[34][35][36][37] to 3D [29,30]. For a more in-depth review of these and other models, the reader is referred to the review article published by Bao et al [38].…”
Section: Introductionmentioning
confidence: 99%
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